Triethylamine → 6-Fluoro-3-[(E)-2-(4-fluorophenyl)-vinyl]-5-nitro-1-trityl-1H-indazole

HRID 34038

반응식

HRID 34038 반응식
Br[C:2]1[C:10]2[C:5](=[CH:6][C:7]([F:14])=[C:8]([N+:11]([O-:13])=[O:12])[CH:9]=2)[N:4]([C:15]([C:28]2[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=2)([C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=2)[C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)[N:3]=1.[F:34][C:35]1[CH:42]=[CH:41][C:38]([CH:39]=[CH2:40])=[CH:37][CH:36]=1.C(P(C(C)(C)C)C1C=CC=CC=1C1C=CC=CC=1)(C)(C)C.C(N(CC)CC)C>CN(C)C=O.C([O-])(=O)C.[Pd+2].C([O-])(=O)C>[F:14][C:7]1[CH:6]=[C:5]2[C:10]([C:2](/[CH:40]=[CH:39]/[C:38]3[CH:41]=[CH:42][C:35]([F:34])=[CH:36][CH:37]=3)=[N:3][N:4]2[C:15]([C:28]2[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=2)([C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)[C:22]2[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=2)=[CH:9][C:8]=1[N+:11]([O-:13])=[O:12]

참가 물질

7

반응물 4

HCID 8471TriethylamineHCID 678834-FluorostyreneHCID 27342152-(Di-tert-butylphosphino)biphenylHCID 689283003-bromo-6-fluoro-5-nitro-1-trityl-1H-indazole

생성물 1

HCID 689284926-Fluoro-3-[(E)-2-(4-fluorophenyl)-vinyl]-5-nitro-1-trityl-1H-indazole수율 46.8%

시약·촉매·용매 2

HCID 167845palladium(II) acetate촉매HCID 6228Dimethylformamide용매

반응 조건

온도
80 °C

실험 절차

To a solution of 600 mg of 3-bromo-6-fluoro-5-nitro-1-trityl-1H-indazole in 6 mL of N,N-dimethylformamide were successively added 292 mg of 4-fluorostyrene, 71 mg of 2-(di-tert-butylphosphino)biphenyl, 27 mg of palladium acetate (II) and 0.85 mL of triethylamine, and stirred at 80° C. for 6.5 hours. The solvent was evaporated, and the resulting residue was dissolved in 25 mL of ethyl acetate. The organic layer was successively washed with water (twice) and saturated brine, dried over anhydrous magnesium sulfate, and then the solvent was evaporated. The obtained crude crystal was recrystallized from ethyl acetate-diisopropylether, to afford 304 mg of the title compound as bright yellow crystals.

후처리

  1. customThe solvent was evaporated
  2. dissolutionthe resulting residue was dissolved in 25 mL of ethyl acetate
  3. washThe organic layer was successively washed with water (twice) and saturated brine
  4. dry with materialdried over anhydrous magnesium sulfate
  5. customthe solvent was evaporated
  6. customThe obtained crude crystal
  7. customwas recrystallized from ethyl acetate-diisopropylether

출처 및 근거

ORD 기록
ord-3c4fee8c4bba47369bf067c0e1d01924
출처 데이터셋
uspto-grants-2008_09
특허 번호
US07429609B2

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